https://bugzilla.redhat.com/show_bug.cgi?id=1076190
--- Comment #4 from Pravin Satpute psatpute@redhat.com --- In this example you have mentioned only about
"a U+035e a" , how about "a U+035e b"? same applies for f, d
Existing position of uni035F works fine even with a͞b
How helvetica rendering it?